The "Hawaii Five-O" actor, 35, and his girlfriend, model Malia Jones, are expecting a baby, O'Loughlin's rep confirms to Us Weekly. E! News was the first to report the couple's happy milestone. The stars made their red carpet debut at the 9th Annual G'Day USA Los Angeles Black Tie Gala in January.

In addition to his role on the CBS hit "Hawaii Five-O," Australian-born O'Loughlin is best known for playing Jennifer Lopez's love interest in the 2010 rom-com "The Back-up Plan." His other notable TV and film credits include "August Rush," "The Shield," "Whiteout" and "Three Rivers." Jones has appeared in magazines such as Sports Illustrated and Esquire, in addition to booking commercials for Coca-Cola, American Express and Capri Sun.